Adjustable roller side bearing.



w. A. GEIG ER.

ADJUSTABLE ROLLER SIDE BEARING.

APPUCAT IQN FILED MAR. 18. l9l5.

1,175,949. Patented Mar. 21,1916.

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WILLIAM A. GEIGER', OF CHICAGO, ILLINOIS, ASSIGNOR T WILLIAM H. MINER, OF Gl-IAZY, IIEVJ' YORK.

ADJUSTABLE ROLLER SIDE BEARING.

Application filed March 18, 1915.

To all 'lC/LOHb it may concern Be it known that 1, WILLIAM A. Gnrenn, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Adjustable Roller Side Bearings, of which the following ,is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in adjustable roller side bearings.

An object of the invention is to provide a roller side bearing of that type employing a rockable cradle which has means for adjusting the height of the anti-friction roller relatively to the bearing face of the opposite bolster of the car to which it is applied.

Another object of the invention is to provide means of readily attaching and detaching the cradle of the roller side bearing to the base casting which means are so arranged that the cradle may be inserted or taken out from the base casting when the latter is in position on the bolster.

The invention furthermore consists in the improvements of the parts and devices and in the novel combinations of the parts and devices, as herein shown, described or claimed.

In the drawing forming a part of this specification, Figure 1 is an end elevation of a body bolster and truck bolster of a car showing my improvements in connection therewith, parts of the bolsters being broken away in order to prevent crowding. Fig. 2 is a transverse vertical sectional View taken substantially on the line 22 of Fig. 3. Fig. 3 is an end elevation of the improved roller side bearing and Fig. 4: is a top plan view of the roller side bearing, parts of the base casting being broken away.

In said drawing, denotes the body bolster and 11 the truck bolster, pivotally connected at their centers in the usual manner, the body bolster being provided with a thrust or bearing plate 12 and the truck bolster having my improved roller side bearing A riveted or otherwise secured thereto.

Although I have only shown one of my side bearings in position on the bolsters, it will be understood that there is one on each side of the car, as is usual.

The improved roller bearing A, as shown,

Specification. of Letters Patent.

Patented Mar. 21, 1916.

Serial No. 15,160.

comprises a base casting having horizontal securing flanges 1313 and an upright boxlike section 1 1. The latter consists of inner and outer parallel walls 15-15 and end parallel walls 16-16, each of the latter being provided with a recess having notches extending around the periphery thereof as indicated at 17, said recess being of substantially circular form and having a restricted top opening 18. Adapted to fit in the notched recesses 1717 are a pair of combined bushing-blocks 19 each of which is substantially circular in form and having notched edges cooperating with the notched edges of the recesses. Each of the blocks 19 is provided with an eccentrically disposed opening 20 forming a bearing for a trunnion 21 east on one end of the rockable cradle The trunnions 21 are oppositely disposed and the axis thereof extends transversely of the bolsters when the latter are in normal position. The cradle 22 is hollowed out as indicated at and mounted within this space is the antifriction roller 2%, the upper surface of wh ch projects above the cradle and base casting and is adapted to contact with the bearing plate 12 of the body bolster. The anti-friction roller 24 is mounted on a shaft 25 which has its ends seated in the side walls of the cradle and in order to minimize wear and to facilitate the assembling of the roller on its shaft, a bushing 26 may be employed (see Fig. 2). To retain the blocks 19 in position, after the same have been inserted laterally or from the sides into the recesses 17, cotters 27 may be used.

In applying the side bearing, the base casting is first secured to the truck bolster. The roller is assembled within the cradle by passing the shaft 25 therethrough after which the cradle is positioned on the base casting by dropping the trunnions 21 through the restricted openings of the recesses 17-17. Thereupon, the notched blocks 19 are slipped over the ends of the trunnions 21 and pushed laterally into the notched recesses 1717 and retained by the cotters 27. On account of the bearing for the trunnions being located eccentrically in the blocks 19, it is obvious that the height of the cradle relatively to the base casting, and consequently the height of the anti-friction roller also, may be varied or adjusted by rotating the blocks 19 to the desired position.

As illustrated in the drawing, the roller and cradle are in their lowermost position and their maximum height would be obtained by rotating the blocks 19 through an arc of 180 degrees. Any intermediate adjustment may be obtained by rotating the blocks 19 a lesser amount.

Although I have herein shown and described what I now consider the preferred embodiment of my invention, yet I am aware that changes and modifications may be made without departing from the spirit of the invention and all such changes and modifications are contemplated as come within the scope of the claims appended hereto.

I claim 1. In a device of the character described, the combination with a base plate, and a rockably mounted cradle having an antifriction roller rotatably mounted therein, of

- means for adjusting the height of said roller relatively to the base plate.

2. In a device of the characterdescribed, the combination with a base plate, and a cradle rockably mounted. therein, said cradle having an anti-friction roller rotatably mounted thereon, of means for adjusting the height of said cradle relatively to the base casting.

3. In a device of the character described, the combination with a base plate, and a rockably mounted cradle having an antifriction roller rotatably mounted therein, of means for adjusting the height of said roller relatively to the base plate, said means including angularly acljust ably mounted blocks, each provided with an eccentrically located journal bearing therein. 7

4:. In a device of the character described, the combination with a base plate, and a cradle rockably mounted therein, said cradle having an anti-friction roller rotatably mounted thereon, of means for adjusting the height of said cradle relatively to the base casting, said means including angularly adjustably mounted blocks, each provided with an eccentrically located journal bearing therein. 7

5. In a roller side bearing for railway cars, the combination with a base casting adapted to be secured to a bolster, said casting having spaced uprightside walls, each of which is provided with a notchedvrecess having a restricted opening, of a cradle having oppositely extended trunnions inserti- 7 ble into said recesses vertically through the restricted openings thereof, and blocks having notched peripheries cooperable with said notched recesses, each of said blocks having an eccentrically disposed opening therein adapted to form a bearing for said trunnions, said blocks being arranged to he slipped endwise over'said trunnions and lat-.

erally into said notched recesses. r

In witness that I claim the foregoing I have hereunto subscribedmy name this 1st day of March 1915.

W'ILLIAM A. GEIGER.

Witnesses: 7

CARRIE Gr. RANZ, GEORGIE VIOKERY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G. 

